Nibe F1245 Service Manual

Alarm 33-39 – sensor fault
Fault-tracing in accessory card.
Is the actual sensor correctly
connected?
YES
YES
YES
Are the sensor features OK,
measured from the connected
sensor cable in the accessory card
(AA5)? (See "Temperature
sensor" section.)
Are the characteristics for the
sensor OK, measured over the
sensor on the accessory card
(AA5)? (See "Data for
Temperature sensor" section.)
Check wiring and switches.
NO
NO
Defective sensor. Replace.
Action.
NO
Is the output voltage from the card
correct? (See "Data for
temperature sensor" section.)
Defective accessory card (AA5).
Replace.
YES
Check wiring and switches.NO
41Chapter 6 | TroubleshootingF1245

Nibe F1245 Specifications

General

Refrigerant	R410A
Control System	NIBE SMO 40
Dimensions (HxWxD)	1800 x 600 x 620 mm
Energy Efficiency Class Heating 35°C	A++
Energy Efficiency Class Heating 55°C	A++
Heating Capacity	5-12 kW
COP Heating	4.5
Integrated Hot Water Tank	180 liters
Power Input Heating	1.0 - 3.0 kW